Not as deliriously funny as it might have been, though still lots of fun, shockmeister John Waters’ attack on Hollywood ‘family’ values (the Baltimore-set sequel Gump Again is the stuff of nightmares) turns out to be an homage to Baltimore’s surviving, at the time, movie theatres.

She’s kidnapped by the crew of messianic director-wannabe Cecil B DeMented (Stephen Dorff) from the glutinous benefit premiere of Some Kind Of Happiness at the Senator Theatre, 5904 York Road, way north of the city centre toward Anneslie at Belvedere Avenue.

One venue that’s already gone is Grand Theatre, which stood at 508 South Conkling Street, outside which the Sprocket Holes clash with the director’s bête noire – a vocal ‘family’ audience. One of Baltimore's great old theaters, the Grand, dating back to 1911 was demolished in 2003, though its marquee, box office and some interior features have apparently been salvaged.

The guerillas recruit action fans to fight off the family audience from a karate marathon at the 1930 Patterson Theater, 3134 Eastern Avenue. The Patterson, which boasts the only traditional vertical marquee lit by bulbs left in Baltimore, was reopened as a multi-purpose arts centre by the Creative Alliance in 2003.

Porn fans face off against Teamsters in the Apex, 110 South Broadway, Fell's Point, which is hosting the delightful sounding ‘All-anal evening’.

Bengie’s, which offers triple features on almost every Friday and Saturday night, along with classic cartoons, vintage trailers and intermissions clips, and Dusk-till-Dawn shows, claims to have the largest movie theatre screen in the USA, measuring 52 feet high and 120 feet wide.